1996 GMC Sonoma Owner's Manual - Page 205
1996 GMC Sonoma Manual
Page 205 highlights
3. Fill the radiator with the proper m i x . up to the base of the filler neck. 4. Then fill the coolant recovery tank to the ADD mark. 5. Put the cap back on the coolant recovery tank. but leave the radiator pressure cap off. 5-19
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